Steam-injector.



No. 785,409. 'y PAIENTED MAR. 21, 1905. WB. GULVER.

STEAM INJEGTOR.

APPLIGATION FILED JAN. zo, 1904.

NTTED STATES Patented March 21, 1905.

PATENT OEEICE.

IYILLARD B. CULVER, OF CARBONDALE, PENNSYLVANIA, ASSIGNOR TO HENDRICK MANUFACTURING COMPANY, OF CARBONDALE, PENN- SYLVANIA, A CORPORATION OF PENNSYLVANIA.

STEAIVI'INJECTOR.

SPECIFICATION forming part of Letters Patent No. 785,409, dated March 21, 1905.

Application filed January 20, 1904:. Serial No. 189,869.

State of Pennsylvania, have invented a certain I.

new and useful Improvement in Steam-Injectors, of which the following is a specification.

In steam-injectors heretofore commonl y elnployed difculty has been experienced withrespect to the fouling' of the internal mechanism through the passage of water containing impurities, such as lime, &c. During the passage of the water impregnated with or carrying such impurities through the mechanism, and particularly through the combining-tube, such impurities accumulate upon the surface over which the water iiows, thereby forming a scale upon such surface, which becoming hard tends to obstruct the further passage of water whether pure or impure.

The primary object of the present invention is to provide an injector from which the combining-tube may readily be withdrawn for the purpose of cleansing the operative surface thereof from such impurities.

A further object is to simplify injector construction and increase the efficiency thereof.

In carrying out the invention I employ a main casing, in which the combining-tube is ad justably mounted. To this casing is detachably secured an elbow or T connection, having an orilice whereby water passing through the in jector may be forced to the boiler. Said connection is also provided with an orilice lying directly below the combining-tube and of such size as to permit such tube to be re-` The invention is illustrated in the accompanying drawings, in which-- Figure 1 is a central vertical section of the lower portion of a steam-injector embodying my invention, and Fig. 2 is a detail View hereinafter to be referred to.

The main casing A, within which the combining-tube B is slidably mounted, is here shown as provided with an annular flange a. Within the neck of the main casing A operates the collar b, having a threaded orifice with which the lower threaded end b of the combining-tube coacts.

C designates the elbow connection, the upper portion whereof is here shown as provided with the iiange c, coacting with the flange a, both ianges being detaehably secured together by any suitable meansas, for instance, the bolts c' and nuts c2.

D designates the outlet-orifice to the boiler. If desired, this may be provided with the annular iiange (Z, whereby the same may be connected either with the boiler, an appurtenance thereof, or a pipe leading thereto. The lower portion of the connection C is here shown as provided with the annular iiange c, and with this coacts a disk E, closing the orifice at the lower end of said connection C, said disk E being secured to the iiange e by any suitable meansfas, for instance, by bolts and nuts e e2. At about its center the disk E is provided with a screw -threaded orifice c, and with this coacts a plug F, having flangef and eX- teriorly threaded both above and below said ange. Within the plug F operates the adjusting-screw G, provided with hand-wheel g and centered within said plug F by means of bushing g', a nut g2 coacting with the lower end of said plug F and said bushing for the purpose of adjustment.

g3 designates a flange carried by the screw Gr and operating in a recess between the upper end of the plug F and the inwardly-extending portion g" of the disk E. The upper end of the screw G is threaded, as at g5, and this threaded end coacts with a similarly-threaded socket 7L, (preferably square in cross-section,) carried by an arm or arms H, depending from and, if desired, formed integral with the collar I), the lower end of said socket operating in the square extension g of the disk E. This coaction ef the lower end of the threaded need be removed, and this can readily be acsocket /L and the extension gG of said disk E is illustrated in the detail View Fig. 2, from which unnecessary parts have been omitted, the sole purpose of said view being to illustrate the preferred arrangement for preventing said socket from turning relatively to said extension.

As will be seen, the collar 7) and the combining-tube B secured thereto may readily be adjusted within the main casing A by the turning of the adjusting-screw G. It will also be seen that by reason of the construction of the elbow connection C and the arrangement therein of the orilice at its lower end, of a size not less than the diameter f the collar Z) or that of the combining-tube B, said combining-tube may readily be withdrawn from the injector for cleansing purposes. To do this, it is not necessary to interfere with the connection between the main casingA and the elbow connection C or with the latter and the boiler or the pipe communicating with the orifice D and such boiler. rlhe disk E only complished by taking out the secu ring devices, such as the bolts and nuts d e2, whereupon said collar and the combining-tube B may be drawn downwardly out of the main casing A and out of the elbow connection C and after being cleansed restored in the same manner.

Having now described my invention, what I claim as new therein, and desire to secure by Letters Patent, is as follows:

`l. In an injector, the combination with a main casing, of a combining-tube movably mounted therein, a supplemental casing secured to said main casing and having an oriiice communicating with the boiler, said supplemental casing having an additional orifice directly underlying said combining-tube and of a size at least coextensive with thediameter of said tube, a closure for said last-named orifice independent of the combining-tube and i when in operative position occupying a liXed relation to said supplemental casing, and a connection, including' adjusting mechanism, between said closure and said combining-tube, substantially as set forth.

2. In an injector, the combination with a main casing, of a combining-tube movably mounted therein, a supplemental casing secured to said main casing and having an oriiice communicating with the boiler, said supplemental casing having an additional orifice directly underlying said combining-tube and of a size at least coextensive with the diameter of said tube, a closure for said last-named orifice independent of the combining-tube and when in operative position occupying a {iXcd relation to said supplemental casing, an adj usting-screw carried by said closure, and a connection, including adjusting mechanism, between the same and said combining-tube, substantially as set forth.

3. In an injector, the combination with a main casing, of a sliding collar operable therein, a combining-tube connected with `said collar, a supplemental casing and means for securing the same to said main casing, an oriiice in said supplemental casing connnunicating with the boiler, another orilice in said supplemental casing directly underlying said collar and combining-tube and of a size at least coextensive with that of said collar and conibining-tube, a closure for said last-named oritice, means for securing said closure in position over said oriiice, and an adjusting device carried by said closure and coacting with an appurtenance of said collar, substantially as set forth.

This specification signed and witnessed this 16th day of January, 1904.

VILLARD B. CULVER.

W'itnesses:

S. O. EDMoNDs, I. MoIN'rosi-i. 

